Trait/Object

shapeless

Widen

Related Docs: object Widen | package shapeless

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trait Widen[T] extends DepFn1[T]

Provides the widen type of a singleton type.

Type member Out of an implicitly available Witness[T] instance is the widen type of T, and the apply method explicitly converts a T to an Out.

E.g. if T is Witness.2.T, Out is Int.

It somehow complements Witness, providing the corresponding non-witnessed standard type, if any.

Example of use, {{ val w = Widen[Witness.2.T] // w.Out is Int // w(2) is typed as Int }}

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Type Members

  1. abstract type Out >: T

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    Definition Classes
    WidenDepFn1

Abstract Value Members

  1. abstract def apply(t: T): Out

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    DepFn1

Concrete Value Members

  1. final def !=(arg0: Any): Boolean

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  2. final def ##(): Int

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  3. final def ==(arg0: Any): Boolean

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  4. final def asInstanceOf[T0]: T0

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  5. def clone(): AnyRef

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    protected[java.lang]
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    @throws( ... )
  6. final def eq(arg0: AnyRef): Boolean

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  7. def equals(arg0: Any): Boolean

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  8. def finalize(): Unit

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    protected[java.lang]
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    @throws( classOf[java.lang.Throwable] )
  9. final def getClass(): Class[_]

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  10. def hashCode(): Int

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  11. final def isInstanceOf[T0]: Boolean

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  12. final def ne(arg0: AnyRef): Boolean

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  13. final def notify(): Unit

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  14. final def notifyAll(): Unit

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  15. final def synchronized[T0](arg0: ⇒ T0): T0

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  16. def toString(): String

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  17. final def wait(): Unit

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    @throws( ... )
  18. final def wait(arg0: Long, arg1: Int): Unit

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  19. final def wait(arg0: Long): Unit

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Inherited from DepFn1[T]

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